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Rediscovery of Gymnadenia Frivaldii Hampe Ex Griseb ... -..:::: Kitaibelia http://kitaibelia.unideb.hu/ ISSN 2064-4507 (Online) ● ISSN 1219-9672 (Print) © 2016, Department of Botany, University of Debrecen, Hungary 21 (2): 213–220.; 2016 DOI: 10.17542/kit.21.213 Rediscovery of Gymnadenia frivaldii Hampe ex Griseb. at its northern distribution limit (Eastern Carpathians, Romania) BARTÓK Attila 1, CSERGŐ Anna-Mária 2, BALÁZS Ödön 3, HURDU Bogdan-Iuliu 4 & JAKAB Gusztáv 5 (1) Sindan-Pharma, RO-011171 Bucureşti, 11 Ion Mihalache Blvd., Romania; [email protected] (2) School of Natural Sciences, Trinity College Dublin, Dublin, Ireland (3) Hargita Megyei Hagyományőrzési Forrásközpont, RO-535600, Odorheiu Secuiesc, 9 1 decembrie 1918 St., Romania (4) Institute of Biological Research, RO-400015 Cluj-Napoca, 48 Republicii St., Romania (5) Szent István University, H-5540 Szarvas, Szabadság St. 1–3, Hungary A Gymnadenia frivaldii Hampe ex Griseb. újrafelfedezése areája északi határán (Keleti Kárpátok, Románia) Összefoglalás – A Frivaldszky-bibircsvirág a Délkeleti-Kárpátok orchideaflórájának egyik ritkasága, amelynek fajneve híres Balkán kutatónk, Frivaldszky Imre (1799–1870) emlékét őrzi. Hegyvidéki lápokon, vízszivárgós, üde helyeken fordul elő a Balkán-félsziget hegyvidékein (Bulgária, Románia, Görögország, Macedónia, Montenegró, Albánia). A fajra a Kárpátokban először Heuffel János bukkant rá a Szárkő-hegységben. Habár a fajt Simonkai 1874-ben gyűjtötte a Retyezátban (Zenóga- és Bukura-tó), a példánya (BP33967) azonosságában bizonytalan volt , ezért az a halvány bibircsvirág ( Gymnadenia albida ) alá sorolva szerepel monográfiájában. Azóta több helyről előkerült a Retyezátból, így a Peleaga- havasról, a Zănoaga-, Zănoguţa-, Ana- és Bucura-tavak mellől és a Judele-völgyből, továbbá a Szárkő- hegység egy-két pontjáról is. Az utolsó szerzőnek a faj egy öt évtizeddel korábbi, csupán egy fitocönológiai tabellában dokumentált előfordulását sikerült megerősítenie a Hargita hegységben (Keleti-Kárpátok). Ez a lelőhely a faj areájának északi határán helyezkedik el, ezért növényföldrajzi szempontból igazán fontos adat. A közlemény bemutatja a faj felfedezésének történetét és jelenleg ismert elterjedését és veszélyeztetettségi státuszát a Kárpátokban, továbbá a Hargita hegységi élőhelyét. Kulcsszavak : bibircsvirág, Frivaldszky Imre, Hargita, Kárpátok, Orchidaceae, természetvédelem Abstract – Frivald’s Gymnadenia is a very rare Balkan species in the South-Eastern Carpathians. The specific epithet “frivaldii” honours Imre Frivaldszky (1799–1870), a Hungarian naturalist. The species occurs in the drawdown zone of mountain fens of the Balkan Peninsula (Bulgaria, Romania, Greece, Macedonia, Montenegro, Albania), at elevations between 1000 and 2300 m. In the Carpathians the species was first reported from the Ţarcu Mts (Southern Carpathians) by János Heuffel. In 1874 Simonkai collected a specimen (BP 33967) in the Retezat Mts, but he was uncertain about its identity, thus this record eventually appeared as G. albida (Pseudorchis albida ) in his monograph. Since then the species has been found at several localities in both the Retezat Mts (Mt Peleaga, Zănoaga, Zănoguţa, Ana and Bucura glacial lakes, Judele Valley) and the Ţarcu Mts. This paper reports on the discovery of Frivald’s Gymnadenia in the area of “Szökő-láp” (Harghita Mts, Eastern Carpathians), which can be considered a confirmation of the old literature record. This is the northernmost locality of this Balkan species known so far. The chorology and conservation status of G. frivaldii in the South-Eastern Carpathians are discussed. Keywords : biodiversity conservation, Carpathians, Gymnadenia , Harghita, Imre Frivaldszky, Orchidaceae 213 BARTÓK et al . (2016) – Kitaibelia 21 (2): 213–220. Redescoperirea speciei Gymnadenia frivaldii aflată la marginea nordică a arealului (Carpaţii Orientali, România) Rezumat – Gymnadenia frivaldii este o orhidee rară şi periclitată, a cărei nume de specie a fost dată în onoarea naturalistului Frivaldszky Imre (1799–1870). Specia este răspândită în munţii din nordul Peninsulei Balcanice (Bulgaria, România, Grecia, Macedonia, Muntenegru, Albania), în pajişti umede şi în mlaştini dominate de muşchiul de turbă (Sphagnum spp.) din zona subalpină şi alpină. În Carpaţi, specia a fost găsită prima oară de J. Heuffel spre mijlocul secolului al XIX-lea, înainte de publicarea monografiei sale despre flora Banatului. Este foarte surprinzător că, deşi Lajos Simonkai găseşte specia în Munţii Retezat înainte de publicarea lucrării sale despre flora Transilvaniei , totuşi Gymnadenia frivaldii nu este inclusă în monografie ca atare, ci sinonimizată cu Gymnadenia albida = Pseudorchis albida . De atunci însă, specia a fost găsită în mai multe puncte din Munţii Retezat, atât în Poiana Pelegii, în zona lacurilor glaciare Zănoaga, Zănoguţa, Ana, Bucura, precum şi în Valea Judele . De asemenea, G. frivaldii a fost descoperită în două puncte din Munţii Ţarcu. Specia a fost menţionată în a doua parte a secolului al XX-lea, din Munţii Harghita (Carpaţii Orientali), într-un studiu fitocenologic publicat într-o revistă de circulaţie mai redusă. Din păcate, de atunci specia nu a mai fost menţionată din Munţii Harghita în principalele lucrări botanice româneşti de sinteză. Autorii acestui articol au reconfirmat în anul 2012 specia G. frivaldii după aproape jumătate de secol de la ultima menționare, într-o mlaştină eu-mezotrofă din Munţii Harghita. Redescoperirea este extrem de valoroasă din punct de vedere biogeografic, deoarece locul este situat la margine de areal, reprezentând cel mai nordic punct din arealul acestui element carpato-balcanic. In acest studiu prezentăm corologia speciei G. frivaldii în Carpații Sud-Estici, descrierea habitatului din Munţii Harghita, precum şi statusul de periclitare al acesteia. Cuvinte cheie : conservarea biodiversității, Carpaţi, Gymnadenia , Harghita, Imre Frivaldszky, Orchidaceae Introduction Due to climate change, extensive habitat destruction and fragmentation, and landuse change, many plant species over the world have suffered a rapid decline in their population density, and this trend is predicted to continue in the future (SALA et al . 2000). Members of the orchid family are especially vulnerable to landuse changes and uncontrolled harvesting (LIU et al . 2015, VOGT -SCHILB et al. 2015). In the South-Eastern Carpathians the number of threatened species (especially orchids) increased during the recent decades, due largely to intensive grazing (DIHORU & NEGREAN 2009). One of the rarest orchid species in the Carpathians is Gymnadenia frivaldii , a Balkan subendemic element (MOORE 1980), whose distribution in the Carpathians is restricted to a few spots in the southeastern part of the mountains (DELFORGE 2006). This taxon has been previously assigned to the genus Pseudorchis (MOORE 1980). However, recent molecular analyses revealed a great difference between the two genera (Pseudorchis and Gymnadenia ) and showed that Pseudorchis frivaldii should be included in the genus Gymnadenia (BATEMAN et al. 2006, EFIMOV 2013). Gymnadenia frivaldii is reported to be a diploid taxon (TRÁVNÍČEK et al. 2012), which can frequently hybridise with Pseudorchis albida and other species of the genus Gymnadenia (JERSÁKOVÁ et al. 2011). The species occurs in the drawdown zone of mountain fens at elevations between 1000 and 2300 m, with a strict requirement for non- carbonate substrates (DJORDJEVIĆ et al. 2016). The aims of our study were to (1) survey the Romanian distribution records of this species, (2) describe the new locality in the Harghita Mts, (3) evaluate of the conservation status of G. frivaldii in the Carpathians. 214 BARTÓK et al . (2016) – Kitaibelia 21 (2): 213–220. Material and methods The traced herbarium specimens stored at BP, BUC, BUCA, BVS, CL, I, IAGB, IASI, SIB (abbreviations following THIERS 2016) and available chorological information from botanical literature were compiled in order to clarify the distribution of G. frivaldii in the Romanian Carpathians. We could not trace relevant specimens in the herbaria of BVS, I, IASI, IAGB, BUCA, BUC and CRAI. Several field trips were made between 2003 and 2016 to the localities from where the species was previously reported: the Retezat and Ţarcu Mts (Southern Carpathians), and the Harghita Mts (Eastern Carpathians). For identification of specimens a few floristic monographs (MOORE 1980, PAUCĂ & ŞTEFUREAC 1972, SÂRBU et al. 2013) were consulted. The nomenclature follows the Euro+Med Plantbase [1]. The distribution maps of G. frivaldii were compiled using the ArcGIS 9.3 (ESRI 1999–2009) software and WorldClim digital elevation model (HIJMANS et at . 2005) downscaled to 90 m. Former records of Gymnadenia frivaldii in the Southern-Carpathians In the 19 th century, during his research aimed at elaborating a monograph on the vascular flora of the Banat region, the Hungarian botanist János Heuffel visited the Ţarcu (Szárkő) and the Godeanu (Godján) Mts in the Southern Carpathians. The main scientific results of these trips were published in a floristic monograph (HEUFFEL 1858), including the discovery of G. frivaldii that was a new taxon for the flora of the whole Carpathians. The species was found by Heuffel in a highly interesting floristic area of the Ţarcu Mts, the northern glacial circus named Groapa Bistrei (Gropa Bisztri). In 1874 Lajos Simonkai collected a specimen (BP 33967) in the Retezat (Retyezát) Mts, but he was uncertain about its identity, thus this record eventually appeared as G. albida (Pseudorchis albida ) in his great monograph (SIMONKAI 1887). Later,
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